A synthetic representation of a robot tool for display on a user interface of a robotic system. The synthetic representation may be used to show the position of a view volume of an image capture device with respect to the robot. The synthetic representation may also be used to find a tool that is outside of the field of view, to display range of motion limits for a tool, to remotely communicate information about the robot, and to detect collisions.

A person support apparatus includes one or more motorized actuators that are braked in different manners depending upon whether or not electrical power is available to the control system. When electrical power is not available, a delay circuit delays closing a first switch that, when closed, short circuits the terminals of one of the motors. When power is available, other switches are opened and closed in a manner that short circuits the terminals of the motor while the first switch remains open. The other switches may be part of an H-bridge. The control system may also detect back emf (electromotive force) generated by the motor when electrical power is available and issue a notification to a technician or other user if an amplitude and/or duration of the detected back emf exceeds a threshold.

A system comprises: a robotic arm operatively coupleable to a tool comprising a working end; and an input device communicatively coupled to the robotic arm. The input device is manipulatable by an operator. The system further comprises a processor configured to cause an image of a work site, captured by an image capture device from a perspective of an image reference frame, to be displayed on a display. The image of the work site includes an image of the working end of the tool. The processor is further configured to determine a position of the working end of the tool in the image of the work site and render a tool information overlay at the position of the working end of the tool in the image of the work site. The tool information overlay visually indicates an identity of the input device.

A computer-assisted surgery system may have a robotic arm including a surgical tool and a processor communicatively connected to the robotic aim. The processor may be configured to receive, from a neural monitor, a signal indicative of a distance between the surgical tool and a portion of a patient's anatomy including nervous tissue. The processor may be further configured to generate a command for altering a degree to which the robotic aim resists movement based on the signal received from the neural monitor; and send the command to the robotic arm.

An operator telerobotically controls tools to perform a procedure on an object at a work site while viewing real-time images of the work site on a display. Tool information is provided in the operator's current gaze area on the display by rendering the tool information over the tool so as not to obscure objects being worked on at the time by the tool nor to require eyes of the user to refocus when looking at the tool information and the image of the tool on a stereo viewer.

A method for automatically ascertaining an input command for a robot, wherein the input command is entered by manually exerting an external force onto the robot. The input command is ascertained on the basis of the joint force component attempting to cause a movement of the robot in only one robot joint coordinate sub-space which is specific to the input command. The joint forces are imprinted with the external force.

A person support apparatus includes one or more motorized actuators that are braked in different manners depending upon whether or not electrical power is available to the control system. When electrical power is not available, a delay circuit delays closing a first switch that, when closed, short circuits the terminals of one of the motors. When power is available, other switches are opened and closed in a manner that short circuits the terminals of the motor while the first switch remains open. The other switches may be part of an H-bridge. The control system may also detect back emf (electromotive force) generated by the motor when electrical power is available and issue a notification to a technician or other user if an amplitude and/or duration of the detected back emf exceeds a threshold.

An operator telerobotically controls tools to perform a procedure on an object at a work site while viewing real-time images of the work site on a display. Tool information is provided in the operator's current gaze area on the display by rendering the tool information over the tool so as not to obscure objects being worked on at the time by the tool nor to require eyes of the user to refocus when looking at the tool information and the image of the tool on a stereo viewer.

The various embodiments herein relate to robotic surgical systems and devices that use force and/or torque sensors to measure forces applied at various components of the system or device. Certain implementations include robotic surgical devices having one or more force/torque sensors that detect or measure one or more forces applied at or on one or more arms. Other embodiments relate to systems having a robotic surgical device that has one or more sensors and an external controller that has one or more motors such that the sensors transmit information that is used at the controller to actuate the motors to provide haptic feedback to a user.

A synthetic representation of a robot tool for display on a user interface of a robotic system. The synthetic representation may be used to show the position of a view volume of an image capture device with respect to the robot. The synthetic representation may also be used to find a tool that is outside of the field of view, to display range of motion limits for a tool, to remotely communicate information about the robot, and to detect collisions.